How do I convert Vitamin B12 from pg/mL to pmol/L?

pmol/L = pg/mL × 0.738. For example, 600 pg/mL equals 443 pmol/L.

How many pmol/L are 600 pg/mL?

600 pg/mL equal 443 pmol/L (Vitamin B12).

Iron & vitamins

pmol/L = pg/mL × 0.738

Enter a value in any unit and all other units fill in.

pg/mL pmol/L

pg/mL → pmol/L	pmol/L = pg/mL × 0.738
pmol/L → pg/mL	pg/mL = pmol/L × 1.355

Highlighted: values inside the adult reference range.

296.7 – 1047 pg/mL = 219 – 773 pmol/L

Source: MedlinePlus (NLM): Vitamin B12 level · Last reviewed: 2026-10-14